"After they graduated from college in 2006, sistersAngela CarrandChristina Cummingsstarted a business selling a product their father had created: an absorbent, fitted hair towel called the Turbie Twist. Carr recently spoke toInc. about how the sisters turned the towel, which retails for $10 to $15, into a national sensation, with sales of $6.5 million and theNo. 789 spoton the2010 Inc. 5000..."